Which one of the following is the correct order in which the gases from the atmosphere disappear as one moves away from the surface of the earth?

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Q: 37 (NDA-II/2009)

Which one of the following is the correct order in which the gases from the atmosphere disappear as one moves away from the surface of the earth?

question_subject: 

Science

question_exam: 

NDA-II

stats: 

0,47,114,47,57,27,30

keywords: 

{'gases': [0, 0, 5, 12], 'correct order': [0, 0, 2, 0], 'atmosphere': [1, 1, 4, 7], 'carbon dioxide': [2, 0, 5, 6], 'nitrogen': [1, 1, 0, 2], 'earth': [0, 1, 1, 1]}

Option 1: Carbon dioxide - Oxygen - Nitrogen

Option 2: Oxygen - Nitrogen - Carbon dioxide

Option 3: Carbon dioxide - Nitrogen - Oxygen (Correct answer)

Option 4: Nitrogen - Oxygen - Carbon dioxide

The correct order in which the gases from the atmosphere disappear as one moves away from the surface of the earth is carbon dioxide, nitrogen, and oxygen.

Option 1 is incorrect because it places carbon dioxide, which is a minor component of the atmosphere, before the major components nitrogen and oxygen.

Option 2 is incorrect because it places oxygen, which is one of the major components of the atmosphere, in the first position and carbon dioxide, a minor component, in the last position.

Option 4 is also incorrect because it places nitrogen, the most abundant gas in the atmosphere, in the first position and oxygen, the second most abundant gas, in the second position.

Therefore, option 3 is the correct answer as it arranges the gases in the correct order from the surface of the earth upwards.

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